how to get current date in php with time code example

Example 1: php get current time and date

date("Y-n-j G:i:s");
//-->2020-10-29 23:27:15

Example 2: get current date from year input php

$date_input = '2003';
$date_output= date( "Y-m-d", mktime( 0, 0, 0, 1, 1, $date_input ));
//date_output = 2003-01-01